Marie caster

If you have no other casters to raise, sure. Nitoand liz are for farming. Hans is cheaper to raise, bt marie has better stats and is much tankier, so she can be used where hans might just die like against riders and berserkers. Use her as an arts crit support.

She's fun to play with. Give the Crystal Dress girl a powerup. ;)

What's fun about her is that she's one sturdy tank with her 3rd skill and her NP is a Critical powerup.

I raised Marie first although I also have Nitocris.

Well i consider Marie is very specific support beside of her ability for AOE farming.
In other word, compared with Waver, Hans and Helena etc, Marie’s utility is in fact low. Meanwhile since her np gain is in fact mediocre, her offensive perfromance when fight against assassins is also not better than other SR caster of Alice, Nito and even Helena.
For instance, She worked decent if you give her 2030 and pair her to Male DPS to form criticla team. However, Hans almost do the same work and even better. Also Helena as another SR caster. In the near future, would also be inferior to caster Gil.
Overall if you dont have any decent AOE caster, and have good Male DPS, then raise her is a good idea.
I do like her animation/voice and have her NP5 but when digging in her potential superiority in a team, her performance is still somehow not really satisfied.

BUT there is one circumstances Marie worked excellent, is because of her durability, she is a decent caster support in fighting against Riders and Berserkers. Thus far there is not so much casters even in JP can do that. Like i do love to have her pired with Kiritsugu when fight Rider boss.

When cosidering the ability of pure farming, little Jalter lily do really good job. But you also will have bunch of ember in the lottery anyway.